Port all the things

[rjw57]

This issue tracks things which we need to port into the application. Edit this description as appropriate. Ideally these will be configurable.

• React frontend compilation.
• ./compose.sh and ./tox.sh scripts.
• Refresh the Dockerfile
• CircleCI configuration (including documentation build)
• Update the various "getting started" bits of the docs to point to a separate "cookbook" repo. (They are shared between projects.)
• "Ping" deployment CI about new versions.